Pump.



1 PATBNTBD MAR. 1, 1904-.

LHAHN.

PUMP.

APPLIoATIoN FILED JAN. 2o, 1903.

NO MODEL.

Inventor John Half: r1;

UNITED STATES Patented March 1, 1904.

PATENT Prien.

JOHN HAHN, OF LOS ANGELES, OALIFORNIA,ASSIGNOR OF ONE-FOURTH TO GEORGEGARTLING, OF LOS ANGELES, CALIFORNIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 758,828, dated March 1,1904. Application filed January 20, 1903. Serial No. 139,822. (Nomodel.)

To all whom it may concern,.-

Be it known that I, JOHN HAHN, a citizen of the United States, residingat Los Angeles, in the county of Los Angeles and State of California,have invented certain new and useful Improvements in Pumps, of which thefollowing is a specification. A

This invention relates to pumps, and particularly to pumps applicablefor deep wells, and has for its primary object the provision of a .pumpwhich may be particularly adapted for pumping oil or water mixed withsand or other solids with ease and effectiveness and which will not clogor become stuck.

' A further object is to provide such a pump of most simple, cheap, anddurable construction which shall be extremely positive and eiflcient inoperation.

To these ends the invention consists in the constructions and in thegeneral and specific combinations of parts hereinafter described, andset forth in the claims.

The invention will be more readily understood by reference to theaccompanying drawings, forming part of this specification, in which-Figure I is a longitudinal sectionall view of a pump embodying myinvention. Fig. II is an enlarged fragmental longitudinal sectionalviewtliereof. Fig. III is a plan view on the line III III of Fig. II.Fig. IV is a plan View on the line IV-IV of Fig. II. Fig. V is asectional view of the valve which I employ.

v As shown in the drawings. 2 represents the Working barrel of the pump;3, the pump-piston; 4., the cage for the upper or piston-valve. Thiscage 4. preferably consists of the upward extensions or standards 5,which are provided on their innerfaces with guides 6. The cage 4. issuitably connected with the piston 3', asv

by a suitable threaded portion (not shown) adapted to engage a threadedportion (not shown) of the piston in the ordinary or any preferredmanner.

The lower end of the piston 3 is provided with an engaging portion 7,adapted to engage the upper end of the lower valve-cage 4.', similar inconstruction to the upper valve-cage 4, having, as shown, similarstandards 5 and and threaded portion, as shown.

guides 6. The lower end of this cage 4. is

connected with theJ barrel or pipe 8 by means ofthreads, Yas shown. Aremovable valveseat 9 is provided at the upper end of Athe' barrel orpipe 8. This barrel or pipe 8 is preferably provided with small fineholes 9 55V for the outlet of any gas that may accumulate in the pipe 8.

10 represents an extension of the working barrel, connected thereto bysuitable threads sion 1() has a series of ribs 11 with open spaces orslots therebetween. The Vinner faces of these ribs are inwardlyinclined, as shown, so that .they form'springs to retain the barrel orpipe 8 in place. `By lowering thepiston 3 and 65 engaging itsscrew-piston 7 with the upper end of the valve-cage 4 the pipe or barrel8 may be raised.

12 represents the valves, the upper and lower valves and valve-cagesbeing preferably of the 7o same construction and are so indicated in thedrawings. The valves 12 are preferably recessed at 13 on their undersides, as shown best in Fig. V, and provided on the top with anupwardly-extending feather-Web 14., which may be of reduced thickness at15` midway between its Wings 16, which terminate in upwardlyprojectingpoints 17. The wings 16 of the feather-web play in the guideways 6,which are preferably of a materially greater width than the edges-of thewings 16, the parts being thus constructed to avoid any liability ofjamming or clogging with sand or other solid matters. The valves 12preferably have cavities 18 on opposite sides of the feather-web. Theunder 8 5 I side of the valves may be beveled or rounded, as at 19,around the edge to t inv the valveseat. They are preferablysemispherical, as shown.

In practical operation the downstrole of the piston in a liquid willcause the valve to be upborne by the liquid, the concavity on the underside of the valve serving to prevent the ready downward movement of thevalve through the liquid. 'This allows the plunger 95 to pass downthrough the liquid, which flows freely throughthe valve-seat andaround-the valve and passes up on eachside of the feather- This exten- 60 web 14 and acting thereon tends to hold the valve in true verticalposition. The liquid is deflected outwardly by the valve bottom againstthe valve-seat and will keep the seat free from any accumulation ofsediment, so that on the return stroke the valve may seat truly. Uponthe upstroke of the vpiston the liquid is caught in the cavities or cupson the opposite sides of the feather-web, and the weight of the liquidtherefore assists to quickly seat the valve,` thus making the action ofthe valve very quick. The pressure of the fluid upon the opposite sidesof the feather-web and in the top cavities tends to hold the valve true,so that the beveled or rounded rim 19 will seat true in the valve-seat.On a return downstroke of the piston the valve is again upheld by theliquid, and in case there may be any solid material in the guides 6 thepoints 17 will pass the obstruction and force it out of the way betweenthe guides without any danger of packing or jamming of the parts.

A convenient and effective form of construction is shown in which theedges of the featherweb terminate in chisel-points, the edges of whichextend transverse the feather-web at the outside thereof. The lower endsof the guides 6 may also be beveled, as indicated at 20, in order toavoid clogging.

It is seen that I surely seat the valve at the upstroke of this piston,and in attaining this object I furnish the upper end of the valve with atail or feather-web corresponding in function to that of the feather-webof an arrow, wherebythe liquid through which the valve passes serves tohold the valve true in guides in which the edges of the feather-webmove.

The valves and ways herein shown and described originally formed part ofthe subjectmatter of my application filed January 30, 1902, Serial No.90,530.

IVhat I claim, and desire to secure by Letters Patent of the UnitedStates, is-

1. In a pump-piston, a valve having a cavity in its under side, and anupwardly-projecting feather terminating in chisel-points at its oppositeedges, and provided in its top with cavities on opposite sides of thefeather.

2. A cage having an annular valve-seat and vertical guideways atopposite sides of said valve-seat, a head at the top of the cageconstructed to provide open ways above the valveseat at opposite sidesof the plane in which said guideways extend; and a valve constructed toseat in the valve-seat and having a transverse upwardly-extending webconstructed to move in the guideways and to form a barrier which willprevent liquid from flowing across the face of the valve transverse saidplane in which the guides extend.

3. A cage having an annular valve-seat and vertical guideways atopposite sides of said valve-seat, a head at the top of the cageconstructed to provide open ways above the valveseat at opposite sidesof the plane in which said guideways extend; and a valve constructed toseat in the valve-seat and having a transverse upwardly-extending webconstructed to move in the guideways and to prevent liquid from iiowingacross the face of the valve transverse said plane in which the guidesextend, the top of saidvalve being also provided with means to retainliquid on the opposite sides of the web.

1. A cage having a valve-seat,vertical guides extending up from oppositesides of the valveseat and a head mounted on the top of the guides andconstructed to provide open ways above the valve-seat on opposite sidesof the plane in which the guides extend, and a valve for the valve-seat,provided with means above the valve to move freely in the guides, saidvalve having a barrier across the top of thc valve in the plane in whichthe guides extend, to prevent the liquid from flowing across the .top ofthe valve transverse said plane.

5. A cage having a valve-seat,verticalguidcs and a head constructed toprovide open ways above the valve-seat on opposite sides of the plane inwhich the guides extend, and a valve for the valve-seat provided withmeans above the valve to move freely in the guides, said valve having abarrier across the top of the valve in the plane in which the guidesextend to prevent liquid from iiowing across the top of the valvetransverse said plane, the top of said valve being constructed to retainliquid on opposite sides of said barrier.

6. The combination of avalve provided with a centeringweb extendingdiametrically across the top thereof, said web having anupwardly-projecting wing at each side thereof; with guides allowing theweb material lateral play, each of said guides being beveled away at itsfoot.

7. A check-valve provided with an integral upwardly-extendingimperforate transverse web the side edges of which reciprocate invertical guideways and are provided with chisel-points arranged to clearsaid guideways.

8. A check-valve provided with an integral upwardly-extendingimperforate transverse web the side edges of which reciprocate invertical guideways and are provided with chisel-points which are beveledtoward the base of said guideways, stops being provided to engage theupper face of the valve.

9. A check-valve provided with an integral imperforateupwardly-extending transverse web the side edges of which reciprocate invertical guideways and are provided with chisel-points for clearing theguideways, the foot of said guideways forming stops which engage theupper face of the valve.

10. In a pump-piston, the combination of a valve-seat and vertical waysthereabove, with a valve adapted to seat therein and slide verticallythereabove, said valve having a convex lower face which slopes inwardlyand downwardly across the seating-line and has a IOO concavity extendingupwardly from the lower extremity of said face and having an integralimperforate upwardly extending transverse web slidable in said ways.

11. In a pump-piston, the combination of a valveseat and vertical ways,thereabove, with a valve adapted to seat therein and slide verticallythereabove, said valvehaving a foonvex lowerface with a cavity normallylying below the level of the top of the valve-seat and having anintegral imperforate upwardlyextending transverse web slidable in saiways. f

12. In a pumppiston, in combination, a valve-seat, acheck-valve adaptedto seat therein and to slide vertically thereabove, said valve having alower face which slopes inwardly and downwardly across the seating-lineand has a concavity extending upwardly from the lower extremity of saidface and a web extending diametrically across the top of the valve, andmeans for guiding the web by its side edges.

13. The combination of a valve provided with a centering-web extendingdiametrically across the top thereof, said web having anupwardly-projecting wing at each side thereof, with guideways whichembrace the side edges of said web, said guideways being materiallywider than the web edge.

14. In a pump-piston, in combination, a valve-cage provided with upwardextensions providing open waysat the sides, said extensions havinginternal guides forming ways, a valve-seat therein, and a valve adaptedto seat therein and provided with a feather-web extending across itscenter andterminating in points adapted to travel in said ways.

15. In a pump-piston,in combination, a valvecage provided with upwardextensions providing open ways at the sides, said extensions havinginternal guides forming ways, a valvecage therein, and avalve adapted toseat therein and provided with a feather-web extending across its centerand terminating in points adapted to travel in said ways, and providedwith cavities in its top at the sides of said feather-web.

16. In a pump-piston, in combination,a valvecage provided with upwardextensions providing open ways at the sides, said extensions havinginternal guides forming ways, avalvecage therein, and a valve adapted toseat therein and provided with a feather-web extending across its centerand terminating in points adapted to travel in said ways, and providedwith cavities in its top at the sides of said feather-web, and alsohaving a concavity on its under side.

17. In a pump-piston, in combination, a valvecage provided with upwardextensions providing open ways at the sides, said extensions havinginternal guides forming ways, a valvexcage therein, and a valve adaptedto seat therein and provided with a feather-web extending across itscenter and terminating in points adapted to travel in said ways, and"having a concavity on its under side.

18. A check-valve rounded on its under face and having acrossthe centerof its top an imperforate feather-web extending above the level of itsupper face and edge, the sides ofA said feather-web constructed andarranged to be acted upon by the liquid through which the valve passesto truly center the valve.

19. A check-valve rounded on its under face and having across the centerof its top animperforate feather-web extending above the level of itsupper face and edge, the sides of said feather-web constructed andarranged `to be actedA upon by the liquid through which the valve passesto truly center the valve, and

said valve provided with cavities in its top at` the sides of saidfeather-web. ,l

20. In a pump,l the combination of a checkvalve rounded on its underside and having across the center of its top an imperforate feather-webextending above the level of its upper face and edge, the sides of saidfeatherweb adapted to receive the resistance of the liquid to center thevalve, said feather-web having chisel-points upwardly forming a conicaledge for said feather-web, with a plunger having upward standards orextensions forming open ways and having internal guides forming wayswithin which said chisel-points play, stops being formed at the lowerend of said guides.

21. In combination, with vertical guideways, of a check-valve providedwith an imperforate upwardly-extending feather-web adapted toreciprocate in said guideways, said featherweb provided withupwardly-curved ends ter- `minating in chisel -points for clearing saidways, the lower ends of said ways forming stops which engage the upperface ofthe valve.

22. In a pump, the combination, with the working barrel, of an extensionhaving a series of ribs having inwardly-inclined faces formingsprings,of a barrel or pipe extending therein and held by said springs.'i 23.- In a pump, the combination, with the working barrel, an extensionhaving a series .IOO

IIO

of ribs having inwardly-inclined faces formp ing springs,of abarrel orpipe extending therein and held by said springs, said barrel or pipeprovided with'gas outlets or perforations.

24. In a pump, the combination with the working barrel, of an extensionhaving a series of ribs with open ways therebetween, said ribs havinginner spring-faces, of a barrel or pipe extending therein and removablyheld therein Y by said ribs.

25. The combination, with a working barrel provided with ribs havinginner faces forming springs, of a barrel or pipe extending into saidribbed portion and removably held therein by said ribs, a valve-seat atthe top of said barrel or pipe, a valve-cage secured on said barrel orpipe, a valve therein, a movable piston, means I'I E IZO for detachablyconnecting said piston and cage to raise said cage and barrel or pipe,and a valve-cage in connection with said piston, a valve-seat inconnection therewith and a valve therein, and means for operating saidpiston.

26. The combination, with a working barrel provided with ribs havinginner faces forming springs, of a barrel or pipe extending into saidribbed portion and removably held therein by said ribs, said barrel'orpipe provided with gas perforations or outlets, a valve-seat at the topof said barrel or pipe, avalve-cage secured on said barrel or pipe, avalve therein, a movable piston', means for detachably connecting saidpiston and cage to raise said cage and barrel or pipe, and avalve-cagein connection with said piston, a valve-seat in connection therewith anda valve therein, and means for operating said piston.

27. The combination with a working barrel, of a barrel or pipe, meansfor retaining said barrel or pipe in the working barrel, said barrel orpipe being provided with gas-outlets, a Valve-seat on said barrel orpipe, a valve cooperating with said valve-seat, a movable piston havinga valve, means for detachably connecting' said piston with the barrel orpipe, and means for operating' the piston.

In testimony whereofl I have signedmy name to this specilication, in thepresence of two subscribing witnesses, at Los Angeles, in the countyT ofLos Angeles and State of California, this 15th day oi' January, 1903.

JOHN HAHN.

Witnesses:

FREDERICK S. LYON, GEORGE T. HACKLEY.

